Wiki Page: 07. How can I set the RESTRAINED pipe option for B31.8 2007 onshore / underground piping

Applies To Product(s): AutoPIPE Version(s): 2004, XM, V8i Environment: N/A Area: Subarea: Original Author: Bentley Technical Support Group Date Logged & Current Version Jan 2015 09.06.01.10 Problem: How can I set the RESTRAINED pipe option for B31.8 2007 onshore / underground piping Answer: Please see the following AutoPIPE help section: Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> ASME B31.8-2007> Code Combinations Here you will see 2 charts displayed, restrained and unrestrained. Note that the combination's category will determine which calculators are used, i.e. restrained or unrestrained equations. Under the charts are a number of notes that you should review for a better understanding of AutoPIPE's analysis. The calculations for restrained piping is conservative and assumes a small amount of contribution from bending, even on straight piping. The more restrained the piping is with more supports or higher soil properties the less contributions from bending and the closer to code calculations for St = E x alpha x (delta T). See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!